<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../js/vue.js"></script>
  <style>
    #app{
        width: 800px;
        margin: 20px auto;
    }
    h2{
        text-align: center;
    }
    .tabs{
        display: flex;
        margin-bottom: 20px;
    }
    .tab{
        cursor: pointer;
        margin-right: 20px;
        border: 1px solid;
        width: 80px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        font-size: 20px;
    }
    .focus{
        background: rgb(162,131,116);
        color: #fff;
    }
    .book{
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 160px;
    }
    .book-name{
        margin-top: 10px;
        height: 42px;
    }
    .book-price{
        color:red;
    }
    .books{
        display: flex;
        justify-content: space-between;
    }
  </style>
</head>
<body>
  <div id="app">
      <h2>每日精选</h2>
      <div class="tabs">
        <div class="tab focus" @mouseenter="changeBooks('hot',$event)">热销</div>
        <div class="tab" @mouseenter="changeBooks('tec',$event)">科技</div>
      </div>
      <book-list:list="list"></book-list>
  </div>
<br>
<script type="text/x-template" id="book">
    <div class="book">
        <img class="book-pic":src="book.pic" width="160">
        <div class="book-name">{{book.name}}</div>
        <div class="book-price">￥{{book.price}}</div>
    </div>
</script>
<script type="text/x-template" id="book-list">
    <div class="book">
        <book v-for="item in list":book="item"></book>
    </div>
</script>
  <script>
    Vue.component('book',{
        template:'#book',
        props:['book']
    })
    Vue.component('book-list',{
        template:'#book-list',
        props:['list']
    })
    let vm=new Vue({
        el:'#app',
        data:{
            books:{
                hot:[{
                    name:'周大新：安魂',
                    price:'26.90',
                    pic:'ah.Webp'
                },{
                    name:'开端',
                    price:'49.80',
                    pic:'kd.Webp'
                },{
                    name:'沙丘全套 六部曲',
                    price:'394.90',
                    pic:'sq.Webp'
                },{
                    name:'长岛小记',
                    price:'33.80',
                    pic:'cdxj.Webp'
                }],
                tec:[{
                    name:'C Primer Plus',
                    price:'76.20',
                    pic:'c.Webp'
                },{
                    name:'Linux就该这么学',
                    price:'94.60',
                    pic:'linux.Webp'
                },{
                    name:'关于火星的一切',
                    price:'39.40',
                    pic:'linux.Webp'
                },{
                    name:'植物的战斗',
                    price:'49.00',
                    pic:'zw.Webp'
                }]
            },
            list:[]
        },
        methods:{
            changeBooks:function(type,ebent){
                this,list=this.books[type]
                let tabs=document.querySelectorAll('.tab')
                for(let i=0;i<tabs.length;i++){
                    tabs[i].classList.remove('focus')
                }
                let tab=event.target
                tab.classList.add('focus')
            }
        },
        mounted(){
            this.list=this.books['hot']
        }
    })
   </script>
</body>
</html>